AQSQID: 401090097

Site Name: Near Road Okc

Location: Oklahoma City (Meridian Ave Corridor), OK

Reporting: True, Located: True

Current AQI: 44.0

Oklahoma City (Meridian Ave Corridor) OK, US: 35.502968, -97.577674

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 27, 2020, 8 p.m. 48.0 ppb (44) 30.0 ppb (28) N/A 17.0 ppb (16) N/A N/A N/A 1.3 ppb (14) 28.0 μg/m3 (25) 6.7 μg/m3 (28) 44.0
 
Jan. 27, 2020, 7 p.m. 58.0 ppb (54) 32.0 ppb (30) N/A 26.0 ppb (24) N/A N/A N/A 1.3 ppb (14) 33.0 μg/m3 (30) 9.1 μg/m3 (38) 54.0
 
Jan. 27, 2020, 6 p.m. 61.0 ppb (57) 30.0 ppb (28) N/A 31.0 ppb (29) N/A N/A N/A 1.4 ppb (16) 38.0 μg/m3 (35) 14.2 μg/m3 (55) 57.0
 
Jan. 27, 2020, 5 p.m. 66.0 ppb (63) 37.0 ppb (34) N/A 28.0 ppb (26) N/A N/A N/A 1.4 ppb (16) 56.0 μg/m3 (50) 25.4 μg/m3 (79) 79.0
 
Jan. 27, 2020, 4 p.m. 71.0 ppb (68) 37.0 ppb (34) N/A 33.0 ppb (31) N/A N/A N/A 1.4 ppb (16) 54.0 μg/m3 (49) 19.3 μg/m3 (66) 68.0
 
Jan. 27, 2020, 3 p.m. 58.0 ppb (54) 17.0 ppb (16) N/A 41.0 ppb (38) N/A N/A N/A 1.2 ppb (13) 46.0 μg/m3 (42) 21.4 μg/m3 (70) 70.0
 
Jan. 27, 2020, 2 p.m. 98.0 ppb (97) 66.0 ppb (63) N/A 32.0 ppb (30) N/A N/A N/A 1.9 ppb (21) 47.0 μg/m3 (43) 22.8 μg/m3 (73) 97.0
 
Jan. 27, 2020, 1 p.m. 77.0 ppb (74) 45.0 ppb (42) N/A 32.0 ppb (30) N/A N/A N/A 1.6 ppb (18) 37.0 μg/m3 (34) 19.9 μg/m3 (67) 74.0
 
Jan. 27, 2020, noon 68.0 ppb (65) 38.0 ppb (35) N/A 30.0 ppb (28) N/A N/A N/A 1.4 ppb (16) 31.0 μg/m3 (28) 19.0 μg/m3 (65) 65.0
 
Jan. 27, 2020, 11 a.m. 38.0 ppb (35) 8.0 ppb (7) N/A 29.0 ppb (27) N/A N/A N/A 1.1 ppb (12) 29.0 μg/m3 (26) 18.3 μg/m3 (63) 63.0
 
Jan. 27, 2020, 10 a.m. 37.0 ppb (34) 7.0 ppb (6) N/A 30.0 ppb (28) N/A N/A N/A 1.1 ppb (12) 33.0 μg/m3 (30) 20.5 μg/m3 (68) 68.0
 
Jan. 27, 2020, 9 a.m. 89.0 ppb (87) 63.0 ppb (60) N/A 26.0 ppb (24) N/A N/A N/A 1.6 ppb (18) 40.0 μg/m3 (36) 27.8 μg/m3 (84) 87.0
 
Jan. 27, 2020, 8 a.m. 117.0 ppb (103) 90.0 ppb (88) N/A 27.0 ppb (25) N/A N/A N/A 1.9 ppb (21) 41.0 μg/m3 (37) 29.9 μg/m3 (88) 103.0
 
Jan. 27, 2020, 7 a.m. 113.0 ppb (102) 88.0 ppb (86) N/A 25.0 ppb (23) N/A N/A N/A 2.0 ppb (22) 43.0 μg/m3 (39) 29.8 μg/m3 (88) 102.0
 
Jan. 27, 2020, 6 a.m. 88.0 ppb (86) 62.0 ppb (59) N/A 26.0 ppb (24) N/A N/A N/A 1.8 ppb (20) 39.0 μg/m3 (35) 26.9 μg/m3 (82) 86.0
 
Jan. 27, 2020, 5 a.m. 81.0 ppb (79) 55.0 ppb (51) N/A 26.0 ppb (24) N/A N/A N/A 1.8 ppb (20) 45.0 μg/m3 (41) 31.1 μg/m3 (91) 91.0
 
Jan. 27, 2020, 4 a.m. 82.0 ppb (80) 55.0 ppb (51) N/A 27.0 ppb (25) N/A N/A N/A 1.8 ppb (20) 46.0 μg/m3 (42) 32.4 μg/m3 (93) 93.0
 
Jan. 27, 2020, 3 a.m. 73.0 ppb (70) 45.0 ppb (42) N/A 27.0 ppb (25) N/A N/A N/A 1.9 ppb (21) 47.0 μg/m3 (43) 31.1 μg/m3 (91) 91.0
 
Jan. 27, 2020, 2 a.m. 59.0 ppb (55) 28.0 ppb (26) N/A 30.0 ppb (28) N/A N/A N/A 1.8 ppb (20) 47.0 μg/m3 (43) 31.1 μg/m3 (91) 91.0
 
Jan. 27, 2020, 1 a.m. 39.0 ppb (36) 6.0 ppb (6) N/A 33.0 ppb (31) N/A N/A N/A 1.5 ppb (17) 42.0 μg/m3 (38) 26.1 μg/m3 (80) 80.0
 
Jan. 27, 2020, midnight 26.0 ppb (24) 3.0 ppb (3) N/A 23.0 ppb (21) N/A N/A N/A 1.2 ppb (13) 23.0 μg/m3 (21) 12.9 μg/m3 (52) 52.0
 
Jan. 26, 2020, 11 p.m. 11.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 1.0 ppb (11) 21.0 μg/m3 (19) 12.2 μg/m3 (50) 50.0
 
Jan. 26, 2020, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 18.0 μg/m3 (16) 11.3 μg/m3 (47) 47.0
 
Jan. 26, 2020, 9 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 19.0 μg/m3 (17) 11.7 μg/m3 (49) 49.0
 
Jan. 26, 2020, 8 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 18.0 μg/m3 (16) 11.2 μg/m3 (47) 47.0
 
Jan. 26, 2020, 7 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 1.0 ppb (11) 17.0 μg/m3 (15) 11.3 μg/m3 (47) 47.0
 
Jan. 26, 2020, 6 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.9 ppb (10) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 26, 2020, 5 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 16.0 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
Jan. 26, 2020, 4 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 1.0 ppb (11) 19.0 μg/m3 (17) 13.4 μg/m3 (53) 53.0
 
Jan. 26, 2020, 3 p.m. 14.0 ppb (13) 5.0 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 1.0 ppb (11) 20.0 μg/m3 (18) 14.6 μg/m3 (56) 56.0
 
Jan. 26, 2020, 2 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 1.0 ppb (11) 18.0 μg/m3 (16) 13.6 μg/m3 (53) 53.0
 
Jan. 26, 2020, 1 p.m. 11.0 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 1.0 ppb (11) 17.0 μg/m3 (15) 12.8 μg/m3 (52) 52.0
 
Jan. 26, 2020, noon 12.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 1.0 ppb (11) 15.0 μg/m3 (14) 10.8 μg/m3 (45) 45.0
 
Jan. 26, 2020, 11 a.m. 26.0 ppb (24) 7.0 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A 1.1 ppb (12) 17.0 μg/m3 (15) 10.4 μg/m3 (43) 43.0
 
Jan. 26, 2020, 10 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 1.0 ppb (11) 18.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
Jan. 26, 2020, 9 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 1.0 ppb (11) 18.0 μg/m3 (16) 9.9 μg/m3 (41) 41.0
 
Jan. 26, 2020, 8 a.m. 30.0 ppb (28) 9.0 ppb (8) N/A 20.0 ppb (19) N/A N/A N/A 1.2 ppb (13) 19.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
Jan. 26, 2020, 7 a.m. 48.0 ppb (44) 17.0 ppb (16) N/A 30.0 ppb (28) N/A N/A N/A 1.4 ppb (16) 23.0 μg/m3 (21) 11.8 μg/m3 (49) 49.0
 
Jan. 26, 2020, 6 a.m. 45.0 ppb (42) 13.0 ppb (12) N/A 31.0 ppb (29) N/A N/A N/A 1.4 ppb (16) 23.0 μg/m3 (21) 11.2 μg/m3 (47) 47.0
 
Jan. 26, 2020, 5 a.m. 53.0 ppb (49) 19.0 ppb (18) N/A 33.0 ppb (31) N/A N/A N/A 1.4 ppb (16) 23.0 μg/m3 (21) 11.3 μg/m3 (47) 49.0
 
Jan. 26, 2020, 4 a.m. 50.0 ppb (46) 23.0 ppb (21) N/A 27.0 ppb (25) N/A N/A N/A 1.3 ppb (14) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 46.0
 
Jan. 26, 2020, 3 a.m. 49.0 ppb (45) 22.0 ppb (20) N/A 26.0 ppb (24) N/A N/A N/A 1.3 ppb (14) 20.0 μg/m3 (18) 7.5 μg/m3 (31) 45.0
 
Jan. 26, 2020, 2 a.m. 49.0 ppb (45) 25.0 ppb (23) N/A 23.0 ppb (21) N/A N/A N/A 1.3 ppb (14) 19.0 μg/m3 (17) 7.2 μg/m3 (30) 45.0
 
Jan. 26, 2020, 1 a.m. 43.0 ppb (40) 21.0 ppb (19) N/A 21.0 ppb (19) N/A N/A N/A 1.2 ppb (13) 20.0 μg/m3 (18) 7.3 μg/m3 (30) 40.0
 
Jan. 26, 2020, midnight 50.0 ppb (46) 28.0 ppb (26) N/A 22.0 ppb (20) N/A N/A N/A 1.3 ppb (14) 23.0 μg/m3 (21) 7.0 μg/m3 (29) 46.0
 
Jan. 25, 2020, 11 p.m. 51.0 ppb (47) 26.0 ppb (24) N/A 25.0 ppb (23) N/A N/A N/A 1.3 ppb (14) 21.0 μg/m3 (19) 7.8 μg/m3 (32) 47.0
 
Jan. 25, 2020, 10 p.m. 40.0 ppb (37) 25.0 ppb (23) N/A 15.0 ppb (14) N/A N/A N/A 1.1 ppb (12) 23.0 μg/m3 (21) 8.2 μg/m3 (34) 37.0
 
Jan. 25, 2020, 9 p.m. 41.0 ppb (38) 23.0 ppb (21) N/A 17.0 ppb (16) N/A N/A N/A 1.2 ppb (13) 23.0 μg/m3 (21) 8.6 μg/m3 (36) 38.0
 
Jan. 25, 2020, 8 p.m. 44.0 ppb (41) 28.0 ppb (26) N/A 16.0 ppb (15) N/A N/A N/A 1.1 ppb (12) 19.0 μg/m3 (17) 7.0 μg/m3 (29) 41.0
 
Jan. 25, 2020, 7 p.m. 42.0 ppb (39) 29.0 ppb (27) N/A 13.0 ppb (12) N/A N/A N/A 1.2 ppb (13) 19.0 μg/m3 (17) 7.2 μg/m3 (30) 39.0
 
Jan. 25, 2020, 6 p.m. 43.0 ppb (40) 26.0 ppb (24) N/A 16.0 ppb (15) N/A N/A N/A 1.2 ppb (13) 18.0 μg/m3 (16) 7.2 μg/m3 (30) 40.0
 
Jan. 25, 2020, 5 p.m. 46.0 ppb (43) 31.0 ppb (29) N/A 14.0 ppb (13) N/A N/A N/A 1.2 ppb (13) 23.0 μg/m3 (21) 8.2 μg/m3 (34) 43.0
 
Jan. 25, 2020, 4 p.m. 36.0 ppb (33) 25.0 ppb (23) N/A 11.0 ppb (10) N/A N/A N/A 1.2 ppb (13) 23.0 μg/m3 (21) 8.7 μg/m3 (36) 36.0
 
Jan. 25, 2020, 3 p.m. 45.0 ppb (42) 33.0 ppb (31) N/A 11.0 ppb (10) N/A N/A N/A 1.1 ppb (12) 24.0 μg/m3 (22) 9.6 μg/m3 (40) 42.0
 
Jan. 25, 2020, 2 p.m. 48.0 ppb (44) 32.0 ppb (30) N/A 15.0 ppb (14) N/A N/A N/A 1.0 ppb (11) 22.0 μg/m3 (20) 10.1 μg/m3 (42) 44.0
 
Jan. 25, 2020, 1 p.m. 46.0 ppb (43) 29.0 ppb (27) N/A 16.0 ppb (15) N/A N/A N/A 1.0 ppb (11) 18.0 μg/m3 (16) 9.4 μg/m3 (39) 43.0
 
Jan. 25, 2020, noon 30.0 ppb (28) 15.0 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A 0.9 ppb (10) 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
Jan. 25, 2020, 11 a.m. 18.0 ppb (17) 9.0 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A 0.9 ppb (10) 14.0 μg/m3 (13) 9.3 μg/m3 (39) 39.0
 
Jan. 25, 2020, 10 a.m. 13.0 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.8 ppb (9) 13.0 μg/m3 (12) 8.9 μg/m3 (37) 37.0
 
Jan. 25, 2020, 9 a.m. 15.0 ppb (14) 7.0 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.8 ppb (9) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Jan. 25, 2020, 8 a.m. 18.0 ppb (17) 7.0 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.8 ppb (9) 14.0 μg/m3 (13) 8.5 μg/m3 (35) 35.0
 
Jan. 25, 2020, 7 a.m. 26.0 ppb (24) 13.0 ppb (12) N/A 13.0 ppb (12) N/A N/A N/A 0.8 ppb (9) 13.0 μg/m3 (12) 7.3 μg/m3 (30) 30.0
 
Jan. 25, 2020, 6 a.m. 32.0 ppb (30) 15.0 ppb (14) N/A 16.0 ppb (15) N/A N/A N/A 0.8 ppb (9) 12.0 μg/m3 (11) 6.7 μg/m3 (28) 30.0
 
Jan. 25, 2020, 5 a.m. 42.0 ppb (39) 21.0 ppb (19) N/A 21.0 ppb (19) N/A N/A N/A 1.0 ppb (11) 15.0 μg/m3 (14) 8.2 μg/m3 (34) 39.0
 
Jan. 25, 2020, 4 a.m. 42.0 ppb (39) 22.0 ppb (20) N/A 19.0 ppb (18) N/A N/A N/A 1.0 ppb (11) 16.0 μg/m3 (15) 8.5 μg/m3 (35) 39.0
 
Jan. 25, 2020, 3 a.m. 54.0 ppb (50) 26.0 ppb (24) N/A 28.0 ppb (26) N/A N/A N/A 1.1 ppb (12) 23.0 μg/m3 (21) 10.2 μg/m3 (42) 50.0
 
Jan. 25, 2020, 2 a.m. 81.0 ppb (79) 46.0 ppb (43) N/A 34.0 ppb (31) N/A N/A N/A 1.3 ppb (14) 25.0 μg/m3 (23) 12.1 μg/m3 (50) 79.0
 
Jan. 25, 2020, 1 a.m. 80.0 ppb (78) 46.0 ppb (43) N/A 34.0 ppb (31) N/A N/A N/A 1.4 ppb (16) 26.0 μg/m3 (24) 11.0 μg/m3 (46) 78.0
 
Jan. 25, 2020, midnight 76.0 ppb (73) 44.0 ppb (41) N/A 31.0 ppb (29) N/A N/A N/A 1.2 ppb (13) 19.0 μg/m3 (17) 7.3 μg/m3 (30) 73.0
 
Jan. 24, 2020, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 19.0
 
Jan. 24, 2020, 10 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Jan. 24, 2020, 9 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.6 ppb (7) 10.0 μg/m3 (9) 5.3 μg/m3 (22) 22.0
 
Jan. 24, 2020, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 5.7 μg/m3 (24) 24.0
 
Jan. 24, 2020, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 10.0 μg/m3 (9) 6.1 μg/m3 (25) 25.0
 
Jan. 24, 2020, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 10.0 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Jan. 24, 2020, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 6.5 μg/m3 (27) 27.0
 
Jan. 24, 2020, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 6.5 μg/m3 (27) 27.0
 
Jan. 24, 2020, 3 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 6.4 μg/m3 (27) 27.0
 
Jan. 24, 2020, 2 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 24, 2020, 1 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 6.6 μg/m3 (28) 28.0
 
Jan. 24, 2020, noon 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 24, 2020, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (6) 5.7 μg/m3 (24) 24.0
 
Jan. 24, 2020, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 7.0 μg/m3 (6) 5.7 μg/m3 (24) 24.0
 
Jan. 24, 2020, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 7.0 μg/m3 (6) 5.3 μg/m3 (22) 22.0
 
Jan. 24, 2020, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 4.0 μg/m3 (4) 3.5 μg/m3 (15) 15.0
 
Jan. 24, 2020, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.6 ppb (7) 3.0 μg/m3 (3) 2.7 μg/m3 (11) 11.0
 
Jan. 24, 2020, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.6 ppb (7) 3.0 μg/m3 (3) 2.0 μg/m3 (8) 8.0
 
Jan. 24, 2020, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 3.0 μg/m3 (3) 2.0 μg/m3 (8) 8.0
 
Jan. 24, 2020, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 4.0 μg/m3 (4) 2.1 μg/m3 (9) 9.0
 
Jan. 24, 2020, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) 2.4 μg/m3 (10) 10.0
 
Jan. 24, 2020, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) 1.8 μg/m3 (8) 8.0
 
Jan. 24, 2020, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 6.0 μg/m3 (5) 1.7 μg/m3 (7) 7.0
 
Jan. 24, 2020, midnight 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 6.0 μg/m3 (5) 1.3 μg/m3 (5) 7.0
 
Jan. 23, 2020, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 6.0 μg/m3 (5) 1.0 μg/m3 (4) 7.0
 
Jan. 23, 2020, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 5.0 μg/m3 (5) 1.1 μg/m3 (5) 6.0
 
Jan. 23, 2020, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 3.0 μg/m3 (3) 0.8 μg/m3 (3) 6.0
 
Jan. 23, 2020, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 1.0 μg/m3 (4) 6.0
 
Jan. 23, 2020, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 1.7 μg/m3 (7) 7.0
 
Jan. 23, 2020, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 2.0 μg/m3 (8) 8.0
 
Jan. 23, 2020, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 2.1 μg/m3 (9) 9.0
 
Jan. 23, 2020, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.4 ppb (4) 5.0 μg/m3 (5) 3.4 μg/m3 (14) 14.0
 
Jan. 23, 2020, 3 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2020, 2 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 13.0 μg/m3 (12) 9.7 μg/m3 (40) 40.0
 
Jan. 23, 2020, 1 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 15.0 μg/m3 (14) 11.8 μg/m3 (49) 49.0
 
Jan. 23, 2020, noon 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 15.0 μg/m3 (14) 11.5 μg/m3 (48) 48.0
 
Jan. 23, 2020, 11 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.7 ppb (8) 15.0 μg/m3 (14) 10.1 μg/m3 (42) 42.0
 
Jan. 23, 2020, 10 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.7 ppb (8) 12.0 μg/m3 (11) 8.5 μg/m3 (35) 35.0
 
Jan. 23, 2020, 9 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.7 ppb (8) 9.0 μg/m3 (8) 7.2 μg/m3 (30) 30.0
 
Jan. 23, 2020, 8 a.m. 20.0 ppb (19) 6.0 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.7 ppb (8) 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
Jan. 23, 2020, 7 a.m. 20.0 ppb (19) 6.0 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.8 ppb (9) 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
Jan. 23, 2020, 6 a.m. 21.0 ppb (19) 9.0 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.8 ppb (9) 10.0 μg/m3 (9) 7.7 μg/m3 (32) 32.0
 
Jan. 23, 2020, 5 a.m. 32.0 ppb (30) 17.0 ppb (16) N/A 14.0 ppb (13) N/A N/A N/A 0.9 ppb (10) 10.0 μg/m3 (9) 7.7 μg/m3 (32) 32.0
 
Jan. 23, 2020, 4 a.m. 27.0 ppb (25) 16.0 ppb (15) N/A 10.0 ppb (9) N/A N/A N/A 1.0 ppb (11) 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 23, 2020, 3 a.m. 36.0 ppb (33) 20.0 ppb (19) N/A 16.0 ppb (15) N/A N/A N/A 1.0 ppb (11) 9.0 μg/m3 (8) 6.4 μg/m3 (27) 33.0
 
Jan. 23, 2020, 2 a.m. 40.0 ppb (37) 25.0 ppb (23) N/A 14.0 ppb (13) N/A N/A N/A 1.1 ppb (12) 9.0 μg/m3 (8) 5.6 μg/m3 (23) 37.0
 
Jan. 23, 2020, 1 a.m. 41.0 ppb (38) 27.0 ppb (25) N/A 14.0 ppb (13) N/A N/A N/A 1.1 ppb (12) 10.0 μg/m3 (9) 5.6 μg/m3 (23) 38.0
 
Jan. 23, 2020, midnight 47.0 ppb (44) 30.0 ppb (28) N/A 17.0 ppb (16) N/A N/A N/A 1.1 ppb (12) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 44.0
 
Jan. 22, 2020, 11 p.m. 41.0 ppb (38) 26.0 ppb (24) N/A 15.0 ppb (14) N/A N/A N/A 1.1 ppb (12) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 38.0
 
Jan. 22, 2020, 10 p.m. 46.0 ppb (43) 32.0 ppb (30) N/A 14.0 ppb (13) N/A N/A N/A 1.1 ppb (12) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 43.0
 
Jan. 22, 2020, 9 p.m. 51.0 ppb (47) 33.0 ppb (31) N/A 18.0 ppb (17) N/A N/A N/A 1.2 ppb (13) 10.0 μg/m3 (9) 4.8 μg/m3 (20) 47.0
 
Jan. 22, 2020, 8 p.m. 52.0 ppb (48) 37.0 ppb (34) N/A 14.0 ppb (13) N/A N/A N/A 1.1 ppb (12) 10.0 μg/m3 (9) 4.8 μg/m3 (20) 48.0
 
Jan. 22, 2020, 7 p.m. 47.0 ppb (44) 32.0 ppb (30) N/A 15.0 ppb (14) N/A N/A N/A 1.1 ppb (12) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 44.0
 
Jan. 22, 2020, 6 p.m. 46.0 ppb (43) 31.0 ppb (29) N/A 15.0 ppb (14) N/A N/A N/A 1.1 ppb (12) 9.0 μg/m3 (8) 5.3 μg/m3 (22) 43.0
 
Jan. 22, 2020, 5 p.m. 35.0 ppb (32) 25.0 ppb (23) N/A 10.0 ppb (9) N/A N/A N/A 1.0 ppb (11) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 32.0
 
Jan. 22, 2020, 4 p.m. 36.0 ppb (33) 22.0 ppb (20) N/A 13.0 ppb (12) N/A N/A N/A 1.0 ppb (11) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 33.0
 
Jan. 22, 2020, 3 p.m. 38.0 ppb (35) 25.0 ppb (23) N/A 13.0 ppb (12) N/A N/A N/A 1.0 ppb (11) 8.0 μg/m3 (7) 4.1 μg/m3 (17) 35.0
 
Jan. 22, 2020, 2 p.m. 39.0 ppb (36) 24.0 ppb (22) N/A 14.0 ppb (13) N/A N/A N/A 1.0 ppb (11) 7.0 μg/m3 (6) 4.2 μg/m3 (18) 36.0
 
Jan. 22, 2020, 1 p.m. 33.0 ppb (31) 20.0 ppb (19) N/A 12.0 ppb (11) N/A N/A N/A 1.0 ppb (11) 8.0 μg/m3 (7) 4.5 μg/m3 (19) 31.0
 
Jan. 22, 2020, noon 27.0 ppb (25) 22.0 ppb (20) N/A 5.0 ppb (5) N/A N/A N/A 1.0 ppb (11) 9.0 μg/m3 (8) 5.2 μg/m3 (22) 25.0
 
Jan. 22, 2020, 11 a.m. 21.0 ppb (19) 14.0 ppb (13) N/A 7.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 11.0 μg/m3 (10) 7.3 μg/m3 (30) 30.0
 
Jan. 22, 2020, 10 a.m. 13.0 ppb (12) 7.0 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.9 ppb (10) 12.0 μg/m3 (11) 9.3 μg/m3 (39) 39.0
 
Jan. 22, 2020, 9 a.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.8 ppb (9) 13.0 μg/m3 (12) 9.7 μg/m3 (40) 40.0
 
Jan. 22, 2020, 8 a.m. 13.0 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.8 ppb (9) 12.0 μg/m3 (11) 9.2 μg/m3 (38) 38.0
 
Jan. 22, 2020, 7 a.m. 12.0 ppb (11) 7.0 ppb (6) N/A 4.0 ppb (4) N/A N/A N/A 0.8 ppb (9) 12.0 μg/m3 (11) 9.1 μg/m3 (38) 38.0
 
Jan. 22, 2020, 6 a.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 13.0 μg/m3 (12) 9.3 μg/m3 (39) 39.0
 
Jan. 22, 2020, 5 a.m. 15.0 ppb (14) 8.0 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 16.0 μg/m3 (15) 9.9 μg/m3 (41) 41.0
 
Jan. 22, 2020, 4 a.m. 22.0 ppb (20) 11.0 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.9 ppb (10) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 22, 2020, 3 a.m. 27.0 ppb (25) 15.0 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A 0.9 ppb (10) 18.0 μg/m3 (16) 9.4 μg/m3 (39) 39.0
 
Jan. 22, 2020, 2 a.m. 27.0 ppb (25) 19.0 ppb (18) N/A 8.0 ppb (7) N/A N/A N/A 1.0 ppb (11) 23.0 μg/m3 (21) 9.2 μg/m3 (38) 38.0
 
Jan. 22, 2020, 1 a.m. 33.0 ppb (31) 24.0 ppb (22) N/A 9.0 ppb (8) N/A N/A N/A 1.0 ppb (11) 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, midnight 45.0 ppb (42) 30.0 ppb (28) N/A 14.0 ppb (13) N/A N/A N/A 1.1 ppb (12) 23.0 μg/m3 (21) 8.4 μg/m3 (35) 42.0
 
Jan. 21, 2020, 11 p.m. 59.0 ppb (55) 39.0 ppb (36) N/A 20.0 ppb (19) N/A N/A N/A 1.0 ppb (11) 21.0 μg/m3 (19) 8.9 μg/m3 (37) 55.0
 
Jan. 21, 2020, 10 p.m. 51.0 ppb (47) 36.0 ppb (33) N/A 15.0 ppb (14) N/A N/A N/A 1.1 ppb (12) 28.0 μg/m3 (25) 10.0 μg/m3 (42) 47.0
 
Jan. 21, 2020, 9 p.m. 59.0 ppb (55) 42.0 ppb (39) N/A 17.0 ppb (16) N/A N/A N/A 1.1 ppb (12) 28.0 μg/m3 (25) 10.4 μg/m3 (43) 55.0
 
Jan. 21, 2020, 8 p.m. 62.0 ppb (59) 41.0 ppb (38) N/A 21.0 ppb (19) N/A N/A N/A 1.1 ppb (12) 29.0 μg/m3 (26) 11.7 μg/m3 (49) 59.0
 
Jan. 21, 2020, 7 p.m. 59.0 ppb (55) 41.0 ppb (38) N/A 18.0 ppb (17) N/A N/A N/A 1.1 ppb (12) 36.0 μg/m3 (33) 13.8 μg/m3 (54) 55.0
 
Jan. 21, 2020, 6 p.m. 56.0 ppb (52) 42.0 ppb (39) N/A 14.0 ppb (13) N/A N/A N/A 1.1 ppb (12) 35.0 μg/m3 (32) 14.8 μg/m3 (56) 56.0
 
Jan. 21, 2020, 5 p.m. 61.0 ppb (57) 46.0 ppb (43) N/A 14.0 ppb (13) N/A N/A N/A 1.1 ppb (12) 42.0 μg/m3 (38) 14.7 μg/m3 (56) 57.0
 
Jan. 21, 2020, 4 p.m. 62.0 ppb (59) 43.0 ppb (40) N/A 18.0 ppb (17) N/A N/A N/A 1.0 ppb (11) 45.0 μg/m3 (41) 15.8 μg/m3 (58) 59.0
 
Jan. 21, 2020, 3 p.m. 69.0 ppb (66) 51.0 ppb (47) N/A 17.0 ppb (16) N/A N/A N/A 1.1 ppb (12) 40.0 μg/m3 (36) 16.4 μg/m3 (59) 66.0
 
Jan. 21, 2020, 2 p.m. 76.0 ppb (73) 54.0 ppb (50) N/A 21.0 ppb (19) N/A N/A N/A 1.3 ppb (14) 41.0 μg/m3 (37) 17.9 μg/m3 (63) 73.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 1.1 ppb (12) 27.0 μg/m3 (25) 15.8 μg/m3 (58) 58.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) 26.0 μg/m3 (24) 14.4 μg/m3 (55) 55.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) 23.0 μg/m3 (21) 12.2 μg/m3 (50) 50.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) 20.0 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 16.0 μg/m3 (15) 8.7 μg/m3 (36) 36.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 16.0 μg/m3 (15) 7.9 μg/m3 (33) 33.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 14.0 μg/m3 (13) 7.2 μg/m3 (30) 30.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) 16.0 μg/m3 (15) 7.5 μg/m3 (31) 31.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) 15.0 μg/m3 (14) 7.9 μg/m3 (33) 33.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) 37.0 μg/m3 (34) 11.7 μg/m3 (49) 49.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) 21.0 μg/m3 (19) 10.5 μg/m3 (44) 44.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (9) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (10) 22.0 μg/m3 (20) 9.3 μg/m3 (39) 39.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (13) 30.0 μg/m3 (27) 11.9 μg/m3 (50) 50.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 1.0 ppb (11) 23.0 μg/m3 (21) 8.1 μg/m3 (34) 34.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) 17.0 μg/m3 (15) 6.7 μg/m3 (28) 28.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0